Fix build

Author: elgalu

.travis.yml

@@ -59,7 +59,7 @@ matrix:
         - docker
       env:
         - DOCKER_VERSION="stable"
-          DOCKER_COMPOSE_VERSION="1.11.0-rc1"
+          DOCKER_COMPOSE_VERSION="1.11.2"
     # Linux with docker:beta/older compose:stable
     - os: linux
       language: c
@@ -69,7 +69,7 @@ matrix:
         - docker
       env:
         - DOCKER_VERSION="1.13.1-rc1"
-          DOCKER_COMPOSE_VERSION="1.11.0-rc1"
+          DOCKER_COMPOSE_VERSION="1.11.2"
     # Mac OSX: only test native docker version
     # - os: osx
     #   osx_image: xcode8